Reversible pump valve



Peb. 19, 1924,.A I I G. E. R. ROTHENBUCHER REVERSIBLE PUMP VALVEl Filed May 21 1921 Patented Feb. 19, 1924.

i G EQRGE E. a. ROTHENBUCHE'R, ory CHICAGO, 'ILLINoIsf lREvERsIisL'E ritmi? VALVE.y

` AApplication'siedi/ray 21,1921.; serial No. 431,355. '1

To allie/tom #may concern:

Be it known that I, GEORGE E. R. ROTH- l ENBUGHER, a citizen ofv the United States,

residing atChicago, in the county'of Cook and State of Illinois,j have invented new and `useful Improvements in Reversible Pump Valves, of which the following is a specification.

,Thisinvention relates to valves employed in connection with pumps for controlling the inlet andthe outlet flow of the fluid operated on by the pump, andits object is lto providejiii a valve of this kind a novel and improved construction which assures a proper seating 'at all times, and also to provide al valve facing which `can be reversed when one side is worn to obtain a new wearingfsurface for another period of use.

The objects stated are attained by means of a combination and arrangement of parts to be hereinafter described and claimed, and in order that the same may be better understood, reference is had to the accompanying drawing forming a part of this specifi-v cation. Y

In the drawing, Figure 1 is a perspective view of the valve.

l partly broken away, and

Fig.V 2 is a central vertical section.'

Referring specifically to the drawing, 1() denotes an annular member which serves as the seat and the support of the valve proper. This member is mounted in an opening in the wall of the pump valve chamber V11, and it is shown externally screw-threaded. to screw into said opening. It will be understood however that the seat member may be made Without threads and secured in the valve chamber wall in any approved manner.

The seat member 10 has a central hubl 12 from which radiate lu'id-deiecting wings 13, said wings extending across the space between the hub and the inner surface of the seat member. The wings are set obliquely to the direction of the fluid flow through the seat member, whereby .the fluid is deflected laterally for a purposeV to be Apresently described.

The hub 12 carries a stem 14 on which is slidably mounted the valve proper. V

The lower end of the stemv is reduced and threaded to screw into the hub, and its upper end is also reduced and screw threaded to receive an abutment 15 for the a llock nutll ,for said abutment.

The valve proper is a its side which faces the Aseat kmember 10, with facing `riiigs19 and 2O which are, coni upper'end of'a'valvefclosiiig spring16, y im disk isjiiad, 0&1'

centrically arranged and so dimensioiied that the ring 19V seats onvthe member 10 andthe ring 2O on thehub 12 when 7the valve is closed. The disk '18 hasga central. opening through which the stem' 11i-passes, and the spring 16 bears against the back of the disk, the center thereof having boss 21 over which the spring is centered.

The under side of the disk 18,'or that side which faces the seatA member 10, has an annular rib 22 in the bottomyof which are fluid pockets' 28, said pockets registerf ing with the spacebetween the hub `12 and the inner surface of the seat member l10.

The rib 22 is threaded externally and internally for carrying supporting mem- V bers foi-'the facing rings 19 and 20. The supporting member for the outer ring 19 is a ring 24 which is internally threaded to screw on the outer threads of the rib 22, and the supporting member of the inner ring20 is an externally threaded ring 25 which is screwed on the inner threads of the rib 22. The facing rings are tightly fitted to their supporting rings. The purpose of the separate supporting rings is to permit the use of a metal or other valve facing material in which it is not practical to cut screw threads for direct attachment to the valve body. It will also beV noted that the supporting rings are shorter than the facing rings, so that the latter project beyond the plane of the ends of the former. This is done for the purpose of permitting reversal of the facing rings when one'side wears down to the supporting rings.A Thus, when the active sides of the facing rings wear away so that the valve leaks, a reetY versal of the ringsis all that is necessary Vhas worn away, the valve can stillbe used' after fitting the same with new i facing rings. V V

When the valve is in operation the 'fluid passing through the seat member 10 is deico iiected laterally into the pockets 23 by the wings 13, with the result that the valve is given a rotary movement as it rises off its seat against the tension of the spring rio are no parts to get loose.

pounding and assures a perfect seating atl alltimes. The threads .on the rings 24 and 25 run in suchL a direction that the rotary motion of the valve has a .tendency to tighten said rings, and the saine is true vWith respect to the stem 14, so that there The spring 16 also serves to prevent the valve `from rotating too far lwhen it risesof itsy seat.

' Claim; f

l. valve comprisingY a disk having an annular ribV on one side which is threaded on both sides, facing rings on said side of the disk, and securing rings for carrying said facing rings, one of said securing rings being threaded internally to screw on the ijmtside of the rib, and the other ring threadedexternally to screw on the inside of the rib.

- 2. A valve comprising a disk having an annular rib on one side which is threaded on ,both sides, facing rings on said side of the disk, and securing rings carrying said facing rings, one of said securing rings being threaded internally to screw lon the outside of the rib, and the other ring threaded externally to screw on the inside of the rib, the vlength of the facing rings being greater than that of the securing rings to leave the ends of thel former projecting beyond the plane of the ends of the latter. Y

3. A valve comprising a disk ha-vingan annular rib on oneside, a -facing ring on said side of the'disk, and a ring carrying said facing ring and detachably and reversibly secured to the rib, the length of the facingring being greater than that ofthe second mentioned ring to leave the Aends of the former projecting beyond the plane of theends of the latter.

' 4. A valve structure comprising an annular Se-athaving a centraly hub,.a stem carried by the hub, and a Valve slidably mounted on said stem, said valve consisting of a disk having an annular rib on its sideI which faces the seat rand the hub, said rib being screw-threaded externally and internally, rings screwed on said threaded portions of the rib, and facing rings ycarried by said rings and positioned to engage the aforesaid seat and the hub respectively.

In testimony whereof I'ailix my signature.

GEORGE E, R. ROTHENBUCHER. 

